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Finding the Fourth Proportional to 351,493.60, 526,851.60 and 193,835.20

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Solution

The fourth proportional to 351,493.60, 526,851.60 and 193,835.20 is: 290,538.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,493.60 : 526,851.60 = 193,835.20 : x
  2. Step 2: Convert to fraction form
    351,493.60/526,851.60 = 193,835.20/x
  3. Step 3: Cross multiply
    351,493.60x = 526,851.60 × 193,835.20
  4. Step 4: Simplify right side
    351,493.60x = 102,122,385,256.32
  5. Step 5: Solve for x
    x = 102,122,385,256.32/351,493.60
  6. Step 6: Final answer
    x = 290,538.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.